JP2001357820A - Single base type fluorescent lamp lighting device - Google Patents
Single base type fluorescent lamp lighting deviceInfo
- Publication number
- JP2001357820A JP2001357820A JP2001106703A JP2001106703A JP2001357820A JP 2001357820 A JP2001357820 A JP 2001357820A JP 2001106703 A JP2001106703 A JP 2001106703A JP 2001106703 A JP2001106703 A JP 2001106703A JP 2001357820 A JP2001357820 A JP 2001357820A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent lamp
- base
- temperature
- lamp
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 229910000497 Amalgam Inorganic materials 0.000 abstract description 13
- 230000006866 deterioration Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 24
- 230000000694 effects Effects 0.000 description 14
- 239000011521 glass Substances 0.000 description 12
- 229910052753 mercury Inorganic materials 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 4
- 230000002542 deteriorative effect Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば密閉形照明器具
等の高周囲温度となる雰囲気で点灯される管壁負荷４Ｗ
/cm2以上の片口金形蛍光ランプの明るさ向上に関する。
なお、本発明でいう片口金形蛍光ランプとは環形蛍光ラ
ンプ、コンパクト形蛍光ランプ等をいう。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube wall load of 4 W which is lit in an atmosphere having a high ambient temperature, such as a closed-type lighting fixture.
The present invention relates to the improvement of the brightness of a single-capped fluorescent lamp of / cm 2 or more.
The single-ended fluorescent lamp in the present invention refers to a ring-shaped fluorescent lamp, a compact fluorescent lamp and the like.
【０００２】[0002]
【従来の技術】蛍光ランプの明るさ向上及び効率改善に
はさまざまな研究がされている。例えば、点灯方式に関
しては、照明学会誌 VOL７８ No.４ １９９４”蛍光
灯のイメージチェンジの主役−インバーター−”に示さ
れたように、高周波点灯することにより効率が向上す
る。一方、蛍光ランプの全光束は、ライティングハンド
ブック 社団法人照明学会１９８７に示されたように周
囲温度と共に変化することが知られており、通常、蛍光
ランプが点灯している周囲温度が２５℃の時、最も明る
くなる。これは、水銀蒸気圧は蛍光ランプの最冷点温度
により決定されており、最冷点温度が低すぎると暗く、
また高すぎた場合も水銀の自己吸収により暗くなる。最
冷点温度に関しては、特開平４-298953 号公報にも示さ
れるように、蛍光ランプの場合は４０℃が最適であり、
その時に発光効率が最大となる。この最冷点は、通常故
意（人為的）に制御するものではなかったが、特開平４
-298953 号公報に示されるように、純水銀に代りアマル
ガムを用いることにより、アマルガムの水銀蒸気圧特性
は純水銀の蒸気圧特性よりも低い為、周囲温度が高温の
場合、または最冷点温度が４０℃を超える時は純水銀よ
りも明るくなることも知られている。2. Description of the Related Art Various studies have been made to improve the brightness and efficiency of fluorescent lamps. For example, as for the lighting method, as shown in the Journal of the Illuminating Engineering Institute of Japan, Vol. 78, No. 4, 1994, “Main Innovator of Fluorescent Lamp-Inverter-”, efficiency is improved by high-frequency lighting. On the other hand, it is known that the total luminous flux of a fluorescent lamp changes with the ambient temperature as shown in the Lighting Handbook Illumination Society of Japan 1987, and usually, when the ambient temperature at which the fluorescent lamp is turned on is 25 ° C. , Become the brightest. This is because the mercury vapor pressure is determined by the coldest point temperature of the fluorescent lamp, and if the coldest point temperature is too low, it becomes dark,
If it is too high, it will darken due to the self-absorption of mercury. Regarding the coldest point temperature, as shown in JP-A-4-298953, 40 ° C. is optimal for a fluorescent lamp,
At that time, the luminous efficiency becomes maximum. The coldest point was not usually controlled intentionally (artificially).
As shown in -298953, by using amalgam instead of pure mercury, the mercury vapor pressure characteristic of amalgam is lower than that of pure mercury. It is also known that when the temperature exceeds 40 ° C., it becomes brighter than pure mercury.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、アマル
ガムを使用した場合コストが上昇するとともに、ランプ
始動特性を悪くする問題があった。一方、最近は蛍光ラ
ンプの周囲を器具で覆う密閉形器具等が多く普及し、ラ
ンプから見て、その点灯中の周囲温度が高くなり過ぎる
傾向にある。従って蛍光ランプの最冷点温度も高くな
り、アマルガム等の特別な手段を講じないと明るさが低
下する問題が頻発し、ランプコストの上昇や始動特性を
悪くさせずに明るさの向上が可能な蛍光ランプの出現が
強く望まれていた。従って、本発明の目的はランプコス
トを上げることなく、しかも始動特性を低下させずに周
囲温度が30℃を超えても明るさを向上できる管壁負荷４
Ｗ/cm2以上の片口金形蛍光ランプ点灯装置を提供しよう
とするものである。However, when amalgam is used, there are problems that the cost increases and the lamp starting characteristics deteriorate. On the other hand, in recent years, many closed-type appliances and the like that cover the periphery of a fluorescent lamp with appliances have become widespread, and the ambient temperature during lighting has tended to be too high as viewed from the lamp. Therefore, the coldest point temperature of fluorescent lamps increases, and the problem of reduced brightness frequently occurs unless special measures such as amalgam are taken. Brightness can be improved without increasing lamp costs or deteriorating starting characteristics. The emergence of a new fluorescent lamp has been strongly desired. Accordingly, an object of the present invention is to provide a tube wall load 4 that can improve the brightness even when the ambient temperature exceeds 30 ° C. without increasing the lamp cost and without deteriorating the starting characteristics.
An object of the present invention is to provide a one-piece fluorescent lamp lighting device of W / cm 2 or more.
【０００４】[0004]
【課題を解決するための手段】本発明に係る蛍光ランプ
点灯装置は周囲温度が30℃を超え、かつ管壁負荷４Ｗ/c
m2以上の片口金形蛍光ランプを、３５ＫＨｚ以上の高周
波で点灯するとともに、ランプ口金に内外に貫通した開
口部を設けたものである。また、開口部を互いに独立し
複数個の孔に構成したものである。さらに、開口部を５
％以上の開口率に構成したものである。A fluorescent lamp lighting device according to the present invention has an ambient temperature exceeding 30 ° C. and a tube wall load of 4 W / c.
A single-base fluorescent lamp of m 2 or more is lit at a high frequency of 35 KHz or more, and an opening penetrating inside and outside of the lamp base is provided. In addition, the openings are formed independently of each other in a plurality of holes. In addition, 5
% Or more.
【０００５】[0005]
【作用】この発明の片口金形蛍光ランプ点灯装置におい
ては、最冷点が口金内のランプ部分に移動し、その温度
が従来の蛍光ランプの最冷点温度よりも低くなることが
実験的に確認された。従って周囲温度が３０℃を超えて
も、最冷点温度が低いことから、アマルガムを用いずに
水銀蒸気圧が抑制される為、コストアップや始動特性低
下を招くことなく従来の片口金形蛍光ランプよりも明る
さを向上させる。また、開口部を独立した複数個の孔と
したので、充電部の露出を防ぎつつ口金の強度をあまり
落すことなく開口部としての効果的な貫通孔を形成する
ことができる。さらに、開口部の開口率を５％以上とし
たため、口金内のランプ部分に確実に最冷点を形成でき
る。In the single lamp type fluorescent lamp lighting device of the present invention, it is experimentally found that the coldest point moves to the lamp portion in the die, and the temperature becomes lower than the coldest point temperature of the conventional fluorescent lamp. confirmed. Therefore, even when the ambient temperature exceeds 30 ° C., since the coldest point temperature is low, the mercury vapor pressure is suppressed without using amalgam, so that the conventional single-necked fluorescent lamp can be used without increasing the cost or lowering the starting characteristics. Improve brightness than lamp. In addition, since the opening is formed as a plurality of independent holes, it is possible to form an effective through-hole as an opening without significantly reducing the strength of the base while preventing exposure of the charged portion. Further, since the opening ratio of the opening is set to 5% or more, the coldest spot can be reliably formed in the lamp portion in the base.
【０００６】[0006]
【実施例】本発明について、図面に示す一実施例に基づ
き説明する。図１の（Ａ）は環形蛍光ランプ（ＦＣＬ3
0）の部分断面図であり、図において１はガラスバルブ
である。このガラスバルブ１の内面には蛍光体被膜（図
示せず）が塗布されている。また、ガラスバルブ１内に
は所定量の水銀とアルゴン等の希ガスが封入されてい
る。さらにガラスバルブ１の内部には電極４が設けられ
ており、そのコイル部にはＢａｏ、ＳｒＯ、ＣａＯ等の
電子放出物質が塗布されている。ガラスバルブ１の端部
にはその両端部を橋絡する口金２が装着されている。こ
の口金２はポリカーボネート製であり、一対の上面体部
２ａと下面体部２ｂとで円筒形を形成されている。３は
この口金下面体部２ｂに植設された４本の口金ピンで、
電極４より導出された図示しないリード線と接続されて
いる。（Ｂ）は（Ａ）の口金２近傍の部分拡大断面図
で、５は口金上面体部２ａに格子状に穿孔された開口部
である。このように構成された環形蛍光ランプを高周波
点灯照明器具にて点灯すると、電極４のコイル部が通電
され、他方の電極との間で放電が開始される。その際、
ランプ内は加熱され、封入されている水銀が蒸発し、ラ
ンプ内はその蛍光ランプの最冷点温度に見合った水銀蒸
気圧で満たされる。図２にこの実施例の環形蛍光ランプ
（ａ）と従来の口金に開口部の無い環形蛍光ランプ
（ｂ）を４０ＫＨｚの高周波点灯回路で点灯した場合の
管壁温度分布を示す。これらランプの温度測定点は図３
に示すとおり、ランプ全長の中央部分（pos.1）、同じ
く４分の１部分（pos.2）、管端部から約10cm部分（po
s.3 ）および口金内に位置する管端部（pos.4 ）の４箇
所である。従来の環形蛍光ランプでは pos.1が最冷点と
なるが、本実施例の環形蛍光ランプでは最冷点が pos.
４に移る。そして、本実施例の環形蛍光ランプの最冷点
温度は従来の環形蛍光ランプの最冷点温度に比べおよそ
１０℃低下する。図４に、本発明の実施例環形蛍光ラン
プ（ａ）と従来の環形蛍光ランプ（ｂ）の温度特性を示
す。従来の環形蛍光ランプは、周囲温度２５℃の時、明
るさが最大となり、それ以上の温度では明るさは低下す
る。しかし、本発明の環形蛍光ランプは周囲温度が３５
℃の時に光束が最大となる為、周囲温度３０℃以上では
従来の環形蛍光ランプよりも明るくなる。このように、
本発明の環形蛍光ランプを高周波点灯照明器具にて点灯
した場合、蛍光ランプの明るさを決定する最冷点が口金
内に移動し、しかも従来の環形蛍光ランプに比べ最冷点
が１０℃低下する為、周囲温度が３０℃以上では従来品
に比べ明るさの向上が見られる。ただし、本発明の環形
蛍光ランプの点灯中の周囲温度が30℃未満の時は、最冷
点温度が低くなり、水銀蒸気圧が過少となる為、逆効果
となる。また、磁気回路式安定器等で点灯した場合、環
形蛍光ランプの最冷点は図３のpos. １にあり、本発明
同様の口金を施しても最冷点がpos. ４に移ることはな
く、また最冷点温度も変化はなく、その効果は得られな
い。この理由として、上記実施例の点灯周波数４０ＫＨ
ｚにおいては、電極部の降下電圧が５０Ｈｚ（６０Ｈ
ｚ）等商用周波数点灯に比べ小さくなり、従って電極部
の発熱量が少なくなり電極より、反放電路側のランプ管
面温度が下がる傾向にあるが、商用周波では比較的電極
での発熱が大きく、従って反放電路側のランプ管壁温度
も高く、本発明を用いても冷却が十分行われず、この結
果、本発明を施さない場合の最冷点温度より低下するこ
とがないためと推測される。高周波点灯においては、電
極部の発熱が小さくなり、本発明の効果が現れ、商用の
低周波では効果が現れないことは上述の通りであるが、
この効果の可否、すなわち最冷点移動の有無の臨界周波
数は凡そ３５ＫＨｚであった。従って、本発明の効果を
得るには、３５ＫＨｚ以上の周波数で点灯する必要があ
る。管壁負荷４Ｗ/cm2未満のランプにおいては、電極部
の発熱は、４Ｗ/cm2以上のランプに比べあまり変化がな
いにもかかわらずランプ本体（放電路部）の発熱が小さ
いため、ランプ本体の温度が低く、その結果最冷点の温
度も低くなり、本発明の構成を用いても、最冷点が移動
（電極後方の方がより低温となる）することはない。ラ
ンプ始動特性は、上記実施例の環形蛍光ランプと従来の
環形蛍光ランプを点灯周波数４０ＫＨｚの点灯回路にて
点灯した場合、その始動電圧は全て８４〜８６Ｖであ
り、両者間には全く差は見られなかった。また、開口部
の開口率を変化させた実験結果を図５に示す。環形蛍光
ランプの口金表面積を100 ％とし、その開口部面積比で
開口率を示した。たて軸には口金を装着しない場合の低
下温度を100 ％とし、各々の温度低下率を相対値で示し
た。図に示すように開口率と共に低下温度は上昇する。
図より明らかなとおり、開口部の開口率は５％以上が望
ましい。なお、口金の開口部形状及び設ける箇所も本実
施例のみに限定はされず、例えば図６ないし図８に示す
ものも適宜選択可能である。ところで、上記実施例では
ＦＣＬ30タイプの環形蛍光ランプについて説明をした
が、他のワット、種々の光色に於ても同様な結果が得ら
れた。さらに、本発明は図９に示すようなコンパクト形
蛍光ランプにも適用できる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in the drawings. FIG. 1A shows an annular fluorescent lamp (FCL3).
FIG. 2 is a partial cross-sectional view of FIG. The inner surface of the glass bulb 1 is coated with a phosphor film (not shown). Further, a predetermined amount of mercury and a rare gas such as argon are sealed in the glass bulb 1. Further, an electrode 4 is provided inside the glass bulb 1, and an electron-emitting substance such as Bao, SrO, CaO or the like is applied to a coil portion thereof. A base 2 that bridges both ends of the glass bulb 1 is attached to an end of the glass bulb 1. The base 2 is made of polycarbonate, and has a cylindrical shape formed by a pair of upper body 2a and lower body 2b. Reference numeral 3 denotes four base pins planted on the base body 2b.
It is connected to a lead wire (not shown) derived from the electrode 4. (B) is a partially enlarged cross-sectional view of the vicinity of the base 2 in (A), and 5 is an opening formed in a lattice shape in the base body 2a. When the ring-shaped fluorescent lamp thus configured is lit by a high-frequency lighting device, the coil portion of the electrode 4 is energized, and discharge starts with the other electrode. that time,
The interior of the lamp is heated and the enclosed mercury evaporates, and the interior of the lamp is filled with a mercury vapor pressure corresponding to the coldest temperature of the fluorescent lamp. FIG. 2 shows the tube wall temperature distribution when the ring-shaped fluorescent lamp (a) of this embodiment and the conventional ring-shaped fluorescent lamp (b) having no opening in the base are lit by a 40 KHz high-frequency lighting circuit. The temperature measurement points for these lamps are shown in FIG.
As shown in the figure, the central part (pos. 1), the same quarter part (pos. 2) of the entire length of the lamp, and about 10 cm from the tube end (po.
s.3) and the pipe end (pos.4) located in the base. In the conventional ring-shaped fluorescent lamp, pos. 1 is the coldest point, but in the ring-shaped fluorescent lamp of this embodiment, the coldest point is pos.
Move to 4. Then, the coldest point temperature of the ring-shaped fluorescent lamp of this embodiment is lower by about 10 ° C. than the coldest point temperature of the conventional ring-shaped fluorescent lamp. FIG. 4 shows the temperature characteristics of the ring-shaped fluorescent lamp (a) of the embodiment of the present invention and the conventional ring-shaped fluorescent lamp (b). The brightness of the conventional ring-shaped fluorescent lamp is maximized at an ambient temperature of 25 ° C., and decreases at a temperature higher than 25 ° C. However, the annular fluorescent lamp of the present invention has an ambient temperature of 35.
Since the luminous flux becomes the maximum at ℃, the ambient temperature becomes higher than that of the conventional ring-shaped fluorescent lamp at an ambient temperature of 30 ℃ or more. in this way,
When the ring-shaped fluorescent lamp of the present invention is lit by a high-frequency lighting fixture, the coldest spot that determines the brightness of the fluorescent lamp moves into the base, and the coldest point is reduced by 10 ° C. compared to the conventional ring-shaped fluorescent lamp. Therefore, when the ambient temperature is 30 ° C. or higher, the brightness is improved as compared with the conventional product. However, when the ambient temperature during operation of the ring-shaped fluorescent lamp of the present invention is lower than 30 ° C., the coldest point temperature becomes low and the mercury vapor pressure becomes too low, so that the opposite effect is brought about. Also, when the ballast is lit by a magnetic circuit ballast or the like, the coldest point of the ring-shaped fluorescent lamp is at pos. 1 in FIG. 3, and even if a base similar to the present invention is applied, the coldest point does not shift to pos. There is no change in the cold spot temperature, and the effect cannot be obtained. The reason is that the lighting frequency of 40 KH in the above embodiment is used.
z, the voltage drop of the electrode section is 50 Hz (60 H
z) It becomes smaller than the commercial frequency lighting, so the calorific value of the electrode part is reduced and the temperature of the lamp tube surface on the side opposite to the discharge path tends to be lower than that of the electrode. Therefore, it is presumed that the temperature of the lamp tube wall on the anti-discharge path side is high, and cooling is not sufficiently performed even when the present invention is used. As a result, the temperature does not drop below the coldest point temperature when the present invention is not applied. In high-frequency lighting, the heat generation of the electrode portion is reduced, the effect of the present invention appears, and as described above, the effect does not appear at commercial low frequency,
Whether this effect was possible or not, that is, the critical frequency for the presence or absence of the movement of the coldest spot was about 35 KHz. Therefore, in order to obtain the effect of the present invention, it is necessary to light at a frequency of 35 KHz or more. In a lamp having a tube wall load of less than 4 W / cm 2 , the heat generated by the electrode portion is not much different from that of a lamp having a tube wall load of 4 W / cm 2 or more. The temperature of the main body is low, and consequently the temperature of the coldest point is also low. Even when the configuration of the present invention is used, the coldest point does not move (the temperature behind the electrode becomes lower). The lamp starting characteristics are as follows. When the ring-shaped fluorescent lamp of the above embodiment and the conventional ring-shaped fluorescent lamp are lit by a lighting circuit having a lighting frequency of 40 KHz, the starting voltages are all 84 to 86 V, and there is no difference between the two. I couldn't. Further, FIG. 5 shows an experimental result in which the aperture ratio of the opening was changed. The opening ratio was indicated by the area ratio of the opening to the surface area of the base of the ring-shaped fluorescent lamp as 100%. The temperature drop when the base was not attached to the vertical shaft was defined as 100%, and the respective temperature drop rates were shown as relative values. As shown in the figure, the lowering temperature increases with the aperture ratio.
As is clear from the figure, the opening ratio of the opening is desirably 5% or more. The shape of the opening of the base and the location to be provided are not limited to this embodiment alone, and for example, those shown in FIGS. 6 to 8 can be appropriately selected. By the way, in the above embodiment, the FCL30 type annular fluorescent lamp was described, but similar results were obtained in other watts and various light colors. Further, the present invention can be applied to a compact fluorescent lamp as shown in FIG.
【０００７】[0007]
【発明の効果】以上説明したように、本発明によれば３
５ＫＨｚ以上の高周波で点灯し、かつ口金に、口金内外
に貫通した開口部を設けることによって、最冷点は口金
内に移り、その温度は従来の管壁負荷４Ｗ/cm2以上の片
口金形蛍光ランプよりも低下する為、アマルガムを用い
ることなく水銀蒸気圧が抑制され、周囲温度が３０℃以
上の時でもコストアップや始動特性低下を招くことな
く、明るさを向上することができる。さらに、開口部を
設けることにより材料の使用量を減らせ原価低減や、開
口部より口金内部の光を外部に放出させ得るため、密閉
タイプの照明器具に使用した場合等口金部の陰を目立た
なくし外観を向上させる等の付随的効果も期待できる。
また、開口部を互いに独立した複数個の孔としたため、
所望の箇所への最冷点の形成を確保しつつ、口金強度の
低下や充電部露出を防止できる。さらにまた、開口部の
開口率を５％以上としたことにより、最冷部を口金内に
確実に形成させ得る効果がある。As described above, according to the present invention, 3
By turning on at a high frequency of 5 KHz or more and providing an opening in the base that penetrates the inside and outside of the base, the coldest point moves to the inside of the base, and the temperature is the same as the conventional one-sided base with a tube wall load of 4 W / cm 2 or more. Since the temperature is lower than that of the fluorescent lamp, the mercury vapor pressure is suppressed without using amalgam, and even when the ambient temperature is 30 ° C. or higher, the brightness can be improved without causing a cost increase or a decrease in starting characteristics. Furthermore, by providing the opening, the amount of material used can be reduced and the cost can be reduced, and the light inside the base can be emitted to the outside through the opening, so that the shadow of the base is less noticeable when used in a closed type lighting fixture. Additional effects such as improving the appearance can also be expected.
In addition, because the opening portion is a plurality of holes independent of each other,
The formation of the coldest spot at the desired location can be ensured, while preventing a decrease in the die strength and the exposure of the charged portion. Furthermore, by setting the opening ratio of the opening to 5% or more, there is an effect that the coldest part can be reliably formed in the base.
【図１】 本発明の一実施例を示す環形蛍光ランプの一
部切欠正面図及びランプ口金部の詳細図である。FIG. 1 is a partially cutaway front view of a ring-shaped fluorescent lamp and a detailed view of a lamp base showing an embodiment of the present invention.
【図２】 本発明環形蛍光ランプと従来の環形蛍光ラン
プの温度特性図である。FIG. 2 is a temperature characteristic diagram of the ring-shaped fluorescent lamp of the present invention and a conventional ring-shaped fluorescent lamp.
【図３】 環形蛍光ランプの管壁温度測定点を示す図で
ある。FIG. 3 is a diagram showing tube wall temperature measurement points of an annular fluorescent lamp.
【図４】 本発明環形蛍光ランプと従来の環形蛍光ラン
プの管壁温度分布図である。FIG. 4 is a tube wall temperature distribution diagram of the annular fluorescent lamp of the present invention and a conventional annular fluorescent lamp.
【図５】 本発明環形蛍光ランプの口金カバー開口率と
相対低下温度特性図である。FIG. 5 is a characteristic diagram of a base cover opening ratio and a relative drop temperature of the ring-shaped fluorescent lamp of the present invention.
【図６】 本発明の他の実施例を示す開口部を設けた口
金上面体の斜視図である。FIG. 6 is a perspective view of an upper surface of a base provided with an opening according to another embodiment of the present invention.
【図７】 本発明の他の実施例を示す開口部を設けた口
金上面体の斜視図である。FIG. 7 is a perspective view of an upper surface of a base provided with an opening showing another embodiment of the present invention.
【図８】 本発明の他の実施例を示す開口部を設けた口
金上面体の斜視図である。FIG. 8 is a perspective view of an upper surface of a base provided with an opening according to another embodiment of the present invention.
【図９】 本発明をコンパクト形蛍光ランプに適用した
実施例を示す正面図である。FIG. 9 is a front view showing an embodiment in which the present invention is applied to a compact fluorescent lamp.
１ ガラスバルブ、２ 口金、５ 開口部。 1 Glass bulb, 2 bases, 5 openings.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１３年４月５日（２００１．４．５）[Submission date] April 5, 2001 (2001.4.5)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 片口金形蛍光ランプ点灯装置[Title of the Invention] Single-ended fluorescent lamp lighting device
【特許請求の範囲】[Claims]
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、例えば密閉形照明器具
等の高周囲温度となる雰囲気で点灯される管壁負荷０．
０４Ｗ／ｃｍ2 以上の片口金形蛍光ランプの明るさ向上
に関する。なお、本発明でいう片口金形蛍光ランプとは
環形蛍光ランプ、コンパクト形蛍光ランプ等をいう。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube wall load which is lit in an atmosphere having a high ambient temperature, such as a closed-type lighting fixture .
The present invention relates to an improvement in brightness of a single-necked fluorescent lamp of 04 W / cm 2 or more. The single-ended fluorescent lamp in the present invention refers to a ring-shaped fluorescent lamp, a compact fluorescent lamp and the like.
【０００２】[0002]
【従来の技術】蛍光ランプの明るさ向上及び効率改善に
はさまざまな研究がされている。例えば、点灯方式に関
しては、照明学会誌 VOL７８ No.４ １９９４”蛍光
灯のイメージチェンジの主役−インバーター−”に示さ
れたように、高周波点灯することにより効率が向上す
る。一方、蛍光ランプの全光束は、ライティングハンド
ブック 社団法人照明学会１９８７に示されたように周
囲温度と共に変化することが知られており、通常、蛍光
ランプが点灯している周囲温度が２５℃の時、最も明る
くなる。これは、水銀蒸気圧は蛍光ランプの最冷点温度
により決定されており、最冷点温度が低すぎると暗く、
また高すぎた場合も水銀の自己吸収により暗くなる。最
冷点温度に関しては、特開平４-298953 号公報にも示さ
れるように、蛍光ランプの場合は４０℃が最適であり、
その時に発光効率が最大となる。この最冷点は、通常故
意（人為的）に制御するものではなかったが、特開平４
-298953 号公報に示されるように、純水銀に代りアマル
ガムを用いることにより、アマルガムの水銀蒸気圧特性
は純水銀の蒸気圧特性よりも低い為、周囲温度が高温の
場合、または最冷点温度が４０℃を超える時は純水銀よ
りも明るくなることも知られている。2. Description of the Related Art Various studies have been made to improve the brightness and efficiency of fluorescent lamps. For example, as for the lighting method, as shown in the Journal of the Illuminating Engineering Institute of Japan, Vol. 78, No. 4, 1994, “Main Innovator of Fluorescent Lamp-Inverter-”, efficiency is improved by high-frequency lighting. On the other hand, it is known that the total luminous flux of a fluorescent lamp changes with the ambient temperature as shown in the Lighting Handbook Illumination Society of Japan 1987, and usually, when the ambient temperature at which the fluorescent lamp is turned on is 25 ° C. , Become the brightest. This is because the mercury vapor pressure is determined by the coldest point temperature of the fluorescent lamp, and if the coldest point temperature is too low, it becomes dark,
If it is too high, it will darken due to the self-absorption of mercury. Regarding the coldest point temperature, as shown in JP-A-4-298953, 40 ° C. is optimal for a fluorescent lamp,
At that time, the luminous efficiency becomes maximum. The coldest point was not usually controlled intentionally (artificially).
As shown in -298953, by using amalgam instead of pure mercury, the mercury vapor pressure characteristic of amalgam is lower than that of pure mercury. It is also known that when the temperature exceeds 40 ° C., it becomes brighter than pure mercury.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、アマル
ガムを使用した場合コストが上昇するとともに、ランプ
始動特性を悪くする問題があった。一方、最近は蛍光ラ
ンプの周囲を器具で覆う密閉形器具等が多く普及し、ラ
ンプから見て、その点灯中の周囲温度が高くなり過ぎる
傾向にある。従って蛍光ランプの最冷点温度も高くな
り、アマルガム等の特別な手段を講じないと明るさが低
下する問題が頻発し、ランプコストの上昇や始動特性を
悪くさせずに明るさの向上が可能な蛍光ランプの出現が
強く望まれていた。従って、本発明の目的はランプコス
トを上げることなく、しかも始動特性を低下させずに周
囲温度が30℃を超えても明るさを向上できる管壁負荷
０．０４Ｗ／ｃｍ2 以上の片口金形蛍光ランプ点灯装置
を提供しようとするものである。However, when amalgam is used, there are problems that the cost increases and the lamp starting characteristics deteriorate. On the other hand, in recent years, many closed-type appliances and the like that cover the periphery of a fluorescent lamp with appliances have become widespread, and the ambient temperature during lighting has tended to be too high as viewed from the lamp. Therefore, the coldest point temperature of fluorescent lamps increases, and the problem of reduced brightness frequently occurs unless special measures such as amalgam are taken. Brightness can be improved without increasing lamp costs or deteriorating starting characteristics. The emergence of a new fluorescent lamp has been strongly desired. Accordingly, it is an object of the present invention to increase the lamp cost without increasing the lamp cost and without deteriorating the starting characteristics even when the ambient temperature exceeds 30 ° C.
An object of the present invention is to provide a single- capped fluorescent lamp lighting device of 0.04 W / cm 2 or more.
【０００４】[0004]
【課題を解決するための手段】本発明に係る蛍光ランプ
点灯装置は周囲温度が30℃を超え、かつ管壁負荷０．０
４Ｗ／ｃｍ2 以上の片口金形蛍光ランプを、３５ＫＨｚ
以上の高周波で点灯するとともに、ランプ口金に内外に
貫通した開口部を設けたものである。また、開口部を互
いに独立し複数個の孔に構成したものである。さらに、
開口部を５％以上の開口率に構成したものである。A fluorescent lamp lighting device according to the present invention has an ambient temperature exceeding 30 ° C. and a tube wall load of 0.0%.
A single base fluorescent lamp of 4 W / cm 2 or more
In addition to lighting at the high frequency as described above, the lamp base is provided with an opening penetrating inside and outside. In addition, the openings are formed independently of each other in a plurality of holes. further,
The aperture is configured to have an aperture ratio of 5% or more.
【０００５】[0005]
【作用】この発明の片口金形蛍光ランプ点灯装置におい
ては、最冷点が口金内のランプ部分に移動し、その温度
が従来の蛍光ランプの最冷点温度よりも低くなることが
実験的に確認された。従って周囲温度が３０℃を超えて
も、最冷点温度が低いことから、アマルガムを用いずに
水銀蒸気圧が抑制される為、コストアップや始動特性低
下を招くことなく従来の片口金形蛍光ランプよりも明る
さを向上させる。また、開口部を独立した複数個の孔と
したので、充電部の露出を防ぎつつ口金の強度をあまり
落すことなく開口部としての効果的な貫通孔を形成する
ことができる。さらに、開口部の開口率を５％以上とし
たため、口金内のランプ部分に確実に最冷点を形成でき
る。In the single lamp type fluorescent lamp lighting device of the present invention, it is experimentally found that the coldest point moves to the lamp portion in the die, and the temperature becomes lower than the coldest point temperature of the conventional fluorescent lamp. confirmed. Therefore, even when the ambient temperature exceeds 30 ° C., since the coldest point temperature is low, the mercury vapor pressure is suppressed without using amalgam, so that the conventional single-necked fluorescent lamp can be used without increasing the cost or lowering the starting characteristics. Improve brightness than lamp. In addition, since the opening is formed as a plurality of independent holes, it is possible to form an effective through-hole as an opening without significantly reducing the strength of the base while preventing exposure of the charged portion. Further, since the opening ratio of the opening is set to 5% or more, the coldest spot can be reliably formed in the lamp portion in the base.
【０００６】[0006]
【実施例】本発明について、図面に示す一実施例に基づ
き説明する。図１の（Ａ）は環形蛍光ランプ（ＦＣＬ3
0）の部分断面図であり、図において１はガラスバルブ
である。このガラスバルブ１の内面には蛍光体被膜（図
示せず）が塗布されている。また、ガラスバルブ１内に
は所定量の水銀とアルゴン等の希ガスが封入されてい
る。さらにガラスバルブ１の内部には電極４が設けられ
ており、そのコイル部にはＢａｏ、ＳｒＯ、ＣａＯ等の
電子放出物質が塗布されている。ガラスバルブ１の端部
にはその両端部を橋絡する口金２が装着されている。こ
の口金２はポリカーボネート製であり、一対の上面体部
２ａと下面体部２ｂとで円筒形を形成されている。３は
この口金下面体部２ｂに植設された４本の口金ピンで、
電極４より導出された図示しないリード線と接続されて
いる。（Ｂ）は（Ａ）の口金２近傍の部分拡大断面図
で、５は口金上面体部２ａに格子状に穿孔された開口部
である。このように構成された環形蛍光ランプを高周波
点灯照明器具にて点灯すると、電極４のコイル部が通電
され、他方の電極との間で放電が開始される。その際、
ランプ内は加熱され、封入されている水銀が蒸発し、ラ
ンプ内はその蛍光ランプの最冷点温度に見合った水銀蒸
気圧で満たされる。図２にこの実施例の環形蛍光ランプ
（ａ）と従来の口金に開口部の無い環形蛍光ランプ
（ｂ）を４０ＫＨｚの高周波点灯回路で点灯した場合の
管壁温度分布を示す。これらランプの温度測定点は図３
に示すとおり、ランプ全長の中央部分（pos.1）、同じ
く４分の１部分（pos.2）、管端部から約10cm部分（po
s.3 ）および口金内に位置する管端部（pos.4 ）の４箇
所である。従来の環形蛍光ランプでは pos.1が最冷点と
なるが、本実施例の環形蛍光ランプでは最冷点が pos.
４に移る。そして、本実施例の環形蛍光ランプの最冷点
温度は従来の環形蛍光ランプの最冷点温度に比べおよそ
１０℃低下する。図４に、本発明の実施例環形蛍光ラン
プ（ａ）と従来の環形蛍光ランプ（ｂ）の温度特性を示
す。従来の環形蛍光ランプは、周囲温度２５℃の時、明
るさが最大となり、それ以上の温度では明るさは低下す
る。しかし、本発明の環形蛍光ランプは周囲温度が３５
℃の時に光束が最大となる為、周囲温度３０℃以上では
従来の環形蛍光ランプよりも明るくなる。このように、
本発明の環形蛍光ランプを高周波点灯照明器具にて点灯
した場合、蛍光ランプの明るさを決定する最冷点が口金
内に移動し、しかも従来の環形蛍光ランプに比べ最冷点
が１０℃低下する為、周囲温度が３０℃以上では従来品
に比べ明るさの向上が見られる。ただし、本発明の環形
蛍光ランプの点灯中の周囲温度が30℃未満の時は、最冷
点温度が低くなり、水銀蒸気圧が過少となる為、逆効果
となる。また、磁気回路式安定器等で点灯した場合、環
形蛍光ランプの最冷点は図３のpos. １にあり、本発明
同様の口金を施しても最冷点がpos. ４に移ることはな
く、また最冷点温度も変化はなく、その効果は得られな
い。この理由として、上記実施例の点灯周波数４０ＫＨ
ｚにおいては、電極部の降下電圧が５０Ｈｚ（６０Ｈ
ｚ）等商用周波数点灯に比べ小さくなり、従って電極部
の発熱量が少なくなり電極より、反放電路側のランプ管
面温度が下がる傾向にあるが、商用周波では比較的電極
での発熱が大きく、従って反放電路側のランプ管壁温度
も高く、本発明を用いても冷却が十分行われず、この結
果、本発明を施さない場合の最冷点温度より低下するこ
とがないためと推測される。高周波点灯においては、電
極部の発熱が小さくなり、本発明の効果が現れ、商用の
低周波では効果が現れないことは上述の通りであるが、
この効果の可否、すなわち最冷点移動の有無の臨界周波
数は凡そ３５ＫＨｚであった。従って、本発明の効果を
得るには、３５ＫＨｚ以上の周波数で点灯する必要があ
る。管壁負荷０．０４Ｗ／ｃｍ2 未満のランプにおいて
は、電極部の発熱は、０．０４Ｗ／ｃｍ2 以上のランプ
に比べあまり変化がないにもかかわらずランプ本体（放
電路部）の発熱が小さいため、ランプ本体の温度が低
く、その結果最冷点の温度も低くなり、本発明の構成を
用いても、最冷点が移動（電極後方の方がより低温とな
る）することはない。ランプ始動特性は、上記実施例の
環形蛍光ランプと従来の環形蛍光ランプを点灯周波数４
０ＫＨｚの点灯回路にて点灯した場合、その始動電圧は
全て８４〜８６Ｖであり、両者間には全く差は見られな
かった。また、開口部の開口率を変化させた実験結果を
図５に示す。環形蛍光ランプの口金表面積を100 ％と
し、その開口部面積比で開口率を示した。たて軸には口
金を装着しない場合の低下温度を100 ％とし、各々の温
度低下率を相対値で示した。図に示すように開口率と共
に低下温度は上昇する。図より明らかなとおり、開口部
の開口率は５％以上が望ましい。なお、口金の開口部形
状及び設ける箇所も本実施例のみに限定はされず、例え
ば図６ないし図８に示すものも適宜選択可能である。と
ころで、上記実施例ではＦＣＬ30タイプの環形蛍光ラン
プについて説明をしたが、他のワット、種々の光色に於
ても同様な結果が得られた。さらに、本発明は図９に示
すようなコンパクト形蛍光ランプにも適用できる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in the drawings. FIG. 1A shows an annular fluorescent lamp (FCL3).
FIG. 2 is a partial cross-sectional view of FIG. The inner surface of the glass bulb 1 is coated with a phosphor film (not shown). Further, a predetermined amount of mercury and a rare gas such as argon are sealed in the glass bulb 1. Further, an electrode 4 is provided inside the glass bulb 1, and an electron-emitting substance such as Bao, SrO, CaO or the like is applied to a coil portion thereof. A base 2 that bridges both ends of the glass bulb 1 is attached to an end of the glass bulb 1. The base 2 is made of polycarbonate, and has a cylindrical shape formed by a pair of upper body 2a and lower body 2b. Reference numeral 3 denotes four base pins planted on the base body 2b.
It is connected to a lead wire (not shown) derived from the electrode 4. (B) is a partially enlarged cross-sectional view of the vicinity of the base 2 in (A), and 5 is an opening formed in a lattice shape in the base body 2a. When the ring-shaped fluorescent lamp thus configured is lit by a high-frequency lighting device, the coil portion of the electrode 4 is energized, and discharge starts with the other electrode. that time,
The interior of the lamp is heated and the enclosed mercury evaporates, and the interior of the lamp is filled with a mercury vapor pressure corresponding to the coldest temperature of the fluorescent lamp. FIG. 2 shows the tube wall temperature distribution when the ring-shaped fluorescent lamp (a) of this embodiment and the conventional ring-shaped fluorescent lamp (b) having no opening in the base are lit by a 40 KHz high-frequency lighting circuit. The temperature measurement points for these lamps are shown in FIG.
As shown in the figure, the central part (pos. 1), the same quarter part (pos. 2) of the entire length of the lamp, and about 10 cm from the tube end (po.
s.3) and the pipe end (pos.4) located in the base. In the conventional ring-shaped fluorescent lamp, pos. 1 is the coldest point, but in the ring-shaped fluorescent lamp of this embodiment, the coldest point is pos.
Move to 4. Then, the coldest point temperature of the ring-shaped fluorescent lamp of this embodiment is lower by about 10 ° C. than the coldest point temperature of the conventional ring-shaped fluorescent lamp. FIG. 4 shows the temperature characteristics of the ring-shaped fluorescent lamp (a) of the embodiment of the present invention and the conventional ring-shaped fluorescent lamp (b). The brightness of the conventional ring-shaped fluorescent lamp is maximized at an ambient temperature of 25 ° C., and decreases at a temperature higher than 25 ° C. However, the annular fluorescent lamp of the present invention has an ambient temperature of 35.
Since the luminous flux becomes the maximum at ℃, the ambient temperature becomes higher than that of the conventional ring-shaped fluorescent lamp at an ambient temperature of 30 ℃ or more. in this way,
When the ring-shaped fluorescent lamp of the present invention is lit by a high-frequency lighting fixture, the coldest spot that determines the brightness of the fluorescent lamp moves into the base, and the coldest point is reduced by 10 ° C. compared to the conventional ring-shaped fluorescent lamp. Therefore, when the ambient temperature is 30 ° C. or higher, the brightness is improved as compared with the conventional product. However, when the ambient temperature during operation of the ring-shaped fluorescent lamp of the present invention is lower than 30 ° C., the coldest point temperature becomes low and the mercury vapor pressure becomes too low, so that the opposite effect is brought about. Also, when the ballast is lit by a magnetic circuit ballast or the like, the coldest point of the ring-shaped fluorescent lamp is at pos. 1 in FIG. 3, and even if a base similar to the present invention is applied, the coldest point does not shift to pos. There is no change in the cold spot temperature, and the effect cannot be obtained. The reason is that the lighting frequency of 40 KH in the above embodiment is used.
z, the voltage drop of the electrode section is 50 Hz (60 H
z) It becomes smaller than the commercial frequency lighting, so the calorific value of the electrode part is reduced and the temperature of the lamp tube surface on the side opposite to the discharge path tends to be lower than that of the electrode. Therefore, it is presumed that the temperature of the lamp tube wall on the anti-discharge path side is high, and cooling is not sufficiently performed even when the present invention is used. As a result, the temperature does not drop below the coldest point temperature when the present invention is not applied. In high-frequency lighting, the heat generation of the electrode portion is reduced, the effect of the present invention appears, and as described above, the effect does not appear at commercial low frequency,
Whether this effect was possible or not, that is, the critical frequency for the presence or absence of the movement of the coldest spot was about 35 KHz. Therefore, in order to obtain the effect of the present invention, it is necessary to light at a frequency of 35 KHz or more. In a lamp having a tube wall load of less than 0.04 W / cm 2 , the heat generation of the lamp body (discharge path portion) is small although the heat generation of the electrode portion is not much different from the lamp of 0.04 W / cm 2 or more. Because of the small size, the temperature of the lamp body is low, and as a result, the temperature of the coldest point is also low. Even when the configuration of the present invention is used, the coldest point does not move (the temperature behind the electrode becomes lower). . The lamp starting characteristics are as follows. The ring-shaped fluorescent lamp of the above embodiment and the conventional ring-shaped fluorescent lamp
When the lighting was performed by the lighting circuit of 0 KHz, the starting voltages were all 84 to 86 V, and no difference was observed between the two. Further, FIG. 5 shows an experimental result in which the aperture ratio of the opening was changed. The opening ratio was indicated by the area ratio of the opening to the surface area of the base of the ring-shaped fluorescent lamp as 100%. The temperature drop when the base was not attached to the vertical shaft was defined as 100%, and the respective temperature drop rates were shown as relative values. As shown in the figure, the lowering temperature increases with the aperture ratio. As is clear from the figure, the opening ratio of the opening is desirably 5% or more. The shape of the opening of the base and the location to be provided are not limited to this embodiment alone, and for example, those shown in FIGS. 6 to 8 can be appropriately selected. By the way, in the above embodiment, the FCL30 type annular fluorescent lamp was described, but similar results were obtained in other watts and various light colors. Further, the present invention can be applied to a compact fluorescent lamp as shown in FIG.
【０００７】[0007]
【発明の効果】以上説明したように、本発明によれば３
５ＫＨｚ以上の高周波で点灯し、かつ口金に、口金内外
に貫通した開口部を設けることによって、最冷点は口金
内に移り、その温度は従来の管壁負荷０．０４Ｗ／ｃｍ
2 以上の片口金形蛍光ランプよりも低下する為、アマル
ガムを用いることなく水銀蒸気圧が抑制され、周囲温度
が３０℃以上の時でもコストアップや始動特性低下を招
くことなく、明るさを向上することができる。さらに、
開口部を設けることにより材料の使用量を減らせ原価低
減や、開口部より口金内部の光を外部に放出させ得るた
め、密閉タイプの照明器具に使用した場合等口金部の陰
を目立たなくし外観を向上させる等の付随的効果も期待
できる。また、開口部を互いに独立した複数個の孔とし
たため、所望の箇所への最冷点の形成を確保しつつ、口
金強度の低下や充電部露出を防止できる。さらにまた、
開口部の開口率を５％以上としたことにより、最冷部を
口金内に確実に形成させ得る効果がある。As described above, according to the present invention, 3
By illuminating at a high frequency of 5 KHz or more and providing an opening in the base that penetrates the inside and outside of the base, the coldest point moves into the base, and the temperature is reduced to the conventional tube wall load of 0.04 W / cm.
Since it is lower than two or more single-necked fluorescent lamps, the mercury vapor pressure is suppressed without using amalgam, and even at an ambient temperature of 30 ° C or higher, the brightness is improved without incurring cost increase or starting characteristic deterioration. can do. further,
By providing an opening, the amount of material used can be reduced and the cost can be reduced, and the light inside the base can be emitted to the outside through the opening. Additional effects such as improvement can be expected. In addition, since the opening is formed of a plurality of holes independent of each other, it is possible to prevent the decrease in the die strength and the exposure of the charged portion while ensuring the formation of the coldest spot at a desired location. Furthermore,
By setting the opening ratio of the opening to 5% or more, there is an effect that the coldest part can be surely formed in the base.
【図面の簡単な説明】[Brief description of the drawings]
【図１】 本発明の一実施例を示す環形蛍光ランプの一
部切欠正面図及びランプ口金部の詳細図である。FIG. 1 is a partially cutaway front view of a ring-shaped fluorescent lamp and a detailed view of a lamp base showing an embodiment of the present invention.
【図２】 本発明環形蛍光ランプと従来の環形蛍光ラン
プの管壁温度分布図である。 FIG. 2 shows a ring-shaped fluorescent lamp of the present invention and a conventional ring-shaped fluorescent lamp.
It is a tube wall temperature distribution map of a pump.
【図３】 環形蛍光ランプの管壁温度測定点を示す図で
ある。FIG. 3 is a diagram showing tube wall temperature measurement points of an annular fluorescent lamp.
【図４】 本発明環形蛍光ランプと従来の環形蛍光ラン
プの温度特性図である。 FIG. 4 shows a ring-shaped fluorescent lamp of the present invention and a conventional ring-shaped fluorescent lamp.
FIG. 4 is a temperature characteristic diagram of a pump.
【図５】 本発明環形蛍光ランプの口金カバー開口率と
相対低下温度特性図である。FIG. 5 is a characteristic diagram of a base cover opening ratio and a relative drop temperature of the ring-shaped fluorescent lamp of the present invention.
【図６】 本発明の他の実施例を示す開口部を設けた口
金上面体の斜視図である。FIG. 6 is a perspective view of an upper surface of a base provided with an opening according to another embodiment of the present invention.
【図７】 本発明の他の実施例を示す開口部を設けた口
金上面体の斜視図である。FIG. 7 is a perspective view of an upper surface of a base provided with an opening showing another embodiment of the present invention.
【図８】 本発明の他の実施例を示す開口部を設けた口
金上面体の斜視図である。FIG. 8 is a perspective view of an upper surface of a base provided with an opening according to another embodiment of the present invention.
【図９】 本発明をコンパクト形蛍光ランプに適用した
実施例を示す正面図である。FIG. 9 is a front view showing an embodiment in which the present invention is applied to a compact fluorescent lamp.
【符号の説明】 １ ガラスバルブ、２ 口金、５ 開口部。[Description of Signs] 1 Glass bulb, 2 bases, 5 openings.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図４[Correction target item name] Fig. 4
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図４】 FIG. 4
Claims (3)
るものであって、ランプ点灯中の周囲温度が30℃を超
え、かつ管壁負荷が４Ｗ/cm2以上となる片口金形蛍光ラ
ンプ点灯装置において、上記高周波を３５ＫＨｚ以上と
するとともに、上記蛍光ランプの口金に、この口金の内
外に貫通する開口部を設けたことを特徴とする片口金形
蛍光ランプ点灯装置。1. A single-capped fluorescent lamp for lighting a single-capped fluorescent lamp at high frequency, wherein the ambient temperature during lamp operation exceeds 30 ° C. and the tube wall load is 4 W / cm 2 or more. In the lighting device, the high frequency is 35 KHz or more, and the base of the fluorescent lamp is provided with an opening penetrating inside and outside of the base.
たことを特徴とする請求項１記載の片口金形蛍光ランプ
点灯装置。2. The lighting device according to claim 1, wherein the opening has a plurality of holes independent of each other.
特徴とする請求項１記載の片口金形蛍光ランプ点灯装
置。3. The single-capped fluorescent lamp lighting device according to claim 1, wherein the aperture ratio of the opening is 5% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001106703A JP3490979B2 (en) | 2001-04-05 | 2001-04-05 | Single-base fluorescent lamp lighting device, ring-shaped fluorescent lamp, method of manufacturing ring-shaped fluorescent lamp, method of manufacturing base of ring-shaped fluorescent lamp, and method of lighting ring-shaped fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001106703A JP3490979B2 (en) | 2001-04-05 | 2001-04-05 | Single-base fluorescent lamp lighting device, ring-shaped fluorescent lamp, method of manufacturing ring-shaped fluorescent lamp, method of manufacturing base of ring-shaped fluorescent lamp, and method of lighting ring-shaped fluorescent lamp |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7092295A Division JP3190228B2 (en) | 1995-03-03 | 1995-03-03 | Single die fluorescent lamp lighting device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003157436A Division JP3648235B2 (en) | 2003-06-03 | 2003-06-03 | Ring-shaped fluorescent lamp caps and single-cap fluorescent lamp caps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001357820A true JP2001357820A (en) | 2001-12-26 |
| JP3490979B2 JP3490979B2 (en) | 2004-01-26 |
Family
ID=18959159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001106703A Expired - Lifetime JP3490979B2 (en) | 2001-04-05 | 2001-04-05 | Single-base fluorescent lamp lighting device, ring-shaped fluorescent lamp, method of manufacturing ring-shaped fluorescent lamp, method of manufacturing base of ring-shaped fluorescent lamp, and method of lighting ring-shaped fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3490979B2 (en) |
-
2001
- 2001-04-05 JP JP2001106703A patent/JP3490979B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3490979B2 (en) | 2004-01-26 |
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